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Clean up built-in instructions.

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This commit is contained in:
chriseth 2020-01-29 18:45:35 +01:00
parent d3b53ee394
commit db33ff6408
2 changed files with 15 additions and 5 deletions
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17
libyul/backends/evm/EVMDialect.cpp
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@ -226,19 +226,30 @@ EVMDialectTyped::EVMDialectTyped(langutil::EVMVersion _evmVersion, bool _objectA
m_functions["slt"_yulstring].returns = {"bool"_yulstring};
m_functions["sgt"_yulstring].returns = {"bool"_yulstring};
m_functions["eq"_yulstring].returns = {"bool"_yulstring};
m_functions["iszero"_yulstring].returns = {"bool"_yulstring};
// "not" and "bitnot" replace "iszero" and "not"
m_functions["bitnot"_yulstring] = m_functions["not"_yulstring];
m_functions["bitnot"_yulstring].name = "bitnot"_yulstring;
m_functions["not"_yulstring] = m_functions["iszero"_yulstring];
m_functions["not"_yulstring].name = "not"_yulstring;
m_functions["not"_yulstring].returns = {"bool"_yulstring};
m_functions["not"_yulstring].parameters = {"bool"_yulstring};
m_functions.erase("iszero"_yulstring);
m_functions["bitand"_yulstring] = m_functions["and"_yulstring];
m_functions["bitand"_yulstring].name = "bitand"_yulstring;
m_functions["bitor"_yulstring] = m_functions["or"_yulstring];
m_functions["bitor"_yulstring].name = "bitor"_yulstring;
m_functions["bitxor"_yulstring] = m_functions["xor"_yulstring];
m_functions["bitxor"_yulstring].name = "bitxor"_yulstring;
m_functions["and"_yulstring].parameters = {"bool"_yulstring, "bool"_yulstring};
m_functions["and"_yulstring].returns = {"bool"_yulstring};
m_functions["or"_yulstring].parameters = {"bool"_yulstring, "bool"_yulstring};
m_functions["or"_yulstring].returns = {"bool"_yulstring};
m_functions["xor"_yulstring].parameters = {"bool"_yulstring, "bool"_yulstring};
m_functions["xor"_yulstring].returns = {"bool"_yulstring};
m_functions["isfalse"_yulstring] = m_functions["iszero"_yulstring];
m_functions["isfalse"_yulstring].parameters = {"bool"_yulstring};
m_functions["popbool"_yulstring] = m_functions["pop"_yulstring];
m_functions["popbool"_yulstring].name = "popbool"_yulstring;
m_functions["popbool"_yulstring].parameters = {"bool"_yulstring};
m_functions.insert(createFunction("bool_to_u256", 1, 1, {}, false, [](
FunctionCall const&,

3
libyul/backends/evm/EVMDialect.h
View File

@ -93,8 +93,7 @@ protected:
* - All comparison functions return type bool
* - bitwise operations are called bitor, bitand, bitxor and bitnot
* - and, or, xor take bool and return bool
* - iszero returns bool
* - isfalse takes bool and returns bool
* - iszero is replaced by not, which takes bool and returns bool
* - there are conversion functions bool_to_u256 and u256_to_bool.
* - there is popbool
*/